263640112 has 20 divisors (see below), whose sum is σ = 513941560. Its totient is φ = 131010048.

The previous prime is 263640107. The next prime is 263640119. The reversal of 263640112 is 211046362.

It is a super-2 number, since 2×263640112² = 139012217310745088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (263640119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47937 + ... + 53152.

It is an arithmetic number, because the mean of its divisors is an integer number (25697078).

Almost surely, 2^263640112 is an apocalyptic number.

It is an amenable number.

263640112 is a deficient number, since it is larger than the sum of its proper divisors (250301448).

263640112 is a wasteful number, since it uses less digits than its factorization.

263640112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101260 (or 101254 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 263640112 is about 16236.9982447496. The cubic root of 263640112 is about 641.2152301266.

Adding to 263640112 its reverse (211046362), we get a palindrome (474686474).

The spelling of 263640112 in words is "two hundred sixty-three million, six hundred forty thousand, one hundred twelve".